Masala Dosa (मसाला डोसा) — Crispy Fermented Rice Crepe with Spiced Potato

• 300 gidli rice (parboiled rice)
• 100 gurad dal (split black gram, skinned)
• 20 gpoha (flattened rice) (Helps tenderness and browning.)
• 3 gfenugreek seeds (About 1 tsp.)
• 520 mlwater (For grinding; adjust by ±50 ml to reach pourable consistency.)
• 10 gfine sea salt (Added after fermentation.)
• 1 gbaking soda (Optional; use only if batter is slow to brown.)
• 700 grusset potatoes (peeled)
• 200 gyellow onion (thinly sliced)
• 12 gfresh ginger (grated)
• 10 ggreen chilies (finely chopped) (About 2 small chilies.)
• 3 gmustard seeds (About 1 tsp.)
• 2 gcumin seeds (About 1 tsp.)
• 10 gchana dal (split chickpeas) (About 1 tbsp; for tempering crunch.)
• 2 gcurry leaves (About 12 leaves.)
• 2 gground turmeric (About 1 tsp.)
• 15 gfresh cilantro (chopped)
• 15 mllemon juice (About 1 tbsp.)
• 30 gghee (About 2 tbsp; can be replaced with neutral oil.)
• 30 mlneutral oil (For pan seasoning and extra crisping.)

Instructions

1. 1

   Rinse the idli rice until the water runs mostly clear, then soak it in plenty of water for 6 hours. In a separate bowl, rinse the urad dal and fenugreek seeds, then soak them together for 4 hours so the dal softens and grinds fluffy.

2. 2

   Soak the poha in water for 10 minutes right before grinding, then drain well. Keeping the rice, dal, and poha separate at this stage helps you control texture and achieve a crisp yet tender dosa.

3. 3

   Grind the soaked urad dal and fenugreek first, adding part of the measured water gradually, until the batter is very smooth and aerated. The texture should look glossy and feel light between your fingers, which helps fermentation and creates lacy edges.

4. 4

   Grind the soaked rice with the drained poha, adding the remaining water as needed, until it becomes a fine, pourable batter with a slight grain. Combine the rice batter with the urad batter and mix vigorously for 1 minute to incorporate air and even out fermentation.

5. 5

   Cover the bowl and ferment the batter in a warm spot (about 28–32°C) for 8–12 hours, until it rises and smells pleasantly tangy. After fermentation, stir in the salt and, only if needed for browning, dissolve the baking soda in 5 ml water and mix it in evenly.

6. 6

   Boil the potatoes in lightly salted water until fully tender, about 18–22 minutes, then drain and cool for 5 minutes. Roughly mash them so you keep some small chunks, which gives the filling a satisfying bite inside the crisp dosa.

7. 7

   Heat a wide pan over medium heat and add 30 ml neutral oil for the tempering base, then add mustard seeds and let them pop for 20–30 seconds. Add cumin seeds, chana dal, and urad dal, and stir for 1–2 minutes until the dals turn golden and nutty.

8. 8

   Add onions with 2 g salt from the filling portion and sauté for 6–8 minutes until soft and lightly golden. Stir in ginger, green chilies, curry leaves, and turmeric, and cook for 60 seconds so the aromatics bloom without burning.

9. 9

   Add the mashed potatoes and 180 ml water, then fold and simmer for 3–4 minutes until the masala looks moist but not soupy. Turn off the heat and mix in cilantro and lemon juice, then taste and adjust with the remaining filling salt so it’s bright and well-seasoned.

10. 10

    Heat a cast-iron tawa or heavy nonstick skillet over medium-high for 3 minutes, then lightly wipe with a thin film of oil. The pan is ready when a few drops of water sizzle and evaporate within 2 seconds, which helps the batter spread thinly.

11. 11

    Ladle 90–100 ml batter into the center and quickly spread it outward in a spiral using the back of the ladle to form a 28–30 cm circle. Drizzle 5 g ghee (or 5 ml oil) around the edges and a few drops in the center, then cook 2–3 minutes until the surface dries and the edges lift.

12. 12

    Continue cooking until the underside is deep golden and crisp, about 60–90 seconds more, then loosen with a flat spatula. Spoon 120–140 g potato masala onto one side, fold the dosa over, and serve immediately so the crepe stays crackly.